Watch the video below to see Duncan and Ben creating an ice chain. As you can see, each individual link has to be carved separately, while every other link is cut in half to be looped into its neighbour.
The links are fused together with a combination of water and carbon dioxide. Co2 is what plumbers often use to seal leaky pipes!
This is complex and fiddly work requiring two people and a great deal of time, care and attention. Ice isn’t the best material for weight bearing, which means that if one link breaks, it’s almost certain to break the whole chain.
Click here to see more photos of the team in action.